U.S. Marines by MTech USA M-A1036 Series Spring Assist Folding Knife, Black Stonewashed Blade, 4.75-Inch Closed Spring assist folding knife offers rapid one-handed deployment, locks securely into place with liner lock 3-inch, 4mm thick straight edge stainless steel blade with blood groove Black G10 handle with texturing for a good grip Pocket clip for easy and safe carry Measures 4.75 inches closed